Acetonitrile → (3S,5S)-5-[({4-[3-chloro-4-fluoroanilino]-7-methoxyquinazolin-5-yl}oxy)methyl]pyrrolidin-3-ol

HRID 1443015Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1443015
[Si]([O:8][C@@H:9]1[CH2:13][N:12](C(OC(C)(C)C)=O)[C@H:11]([CH2:21][O:22][C:23]2[CH:32]=[C:31]([O:33][CH3:34])[CH:30]=[C:29]3[C:24]=2[C:25]([NH:35][C:36]2[CH:41]=[CH:40][C:39]([F:42])=[C:38]([Cl:43])[CH:37]=2)=[N:26][CH:27]=[N:28]3)[CH2:10]1)(C(C)(C)C)(C)C.C(#N)C>FC(F)(F)C(O)=O>[Cl:43][C:38]1[CH:37]=[C:36]([CH:41]=[CH:40][C:39]=1[F:42])[NH:35][C:25]1[C:24]2[C:29](=[CH:30][C:31]([O:33][CH3:34])=[CH:32][C:23]=2[O:22][CH2:21][C@H:11]2[NH:12][CH2:13][C@@H:9]([OH:8])[CH2:10]2)[N:28]=[CH:27][N:26]=1

Komponenten

4

Edukt 2

HCID 6342AcetonitrileHCID 86607808tert-Butyl (2S,4S)-4-{[tert-butyl(dimethyl)silyl]oxy}-2-[({4-[3-chloro-4-fluoro-anilino]-7-methoxyquinazolin-5-yl}oxy)methyl]pyrrolidine-1-carboxylate

Produkt 1

HCID 68676027(3S,5S)-5-[({4-[3-chloro-4-fluoroanilino]-7-methoxyquinazolin-5-yl}oxy)methyl]pyrrolidin-3-olAusbeute 51 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6422Trifluoroacetic acidLösungsmittel

Versuchsvorschrift

tert-Butyl (2S,4S)-4-{[tert-butyl(dimethyl)silyl]oxy}-2-[({4-[3-chloro-4-fluoro-anilino]-7-methoxyquinazolin-5-yl}oxy)methyl]pyrrolidine-1-carboxylate (1.13 g) was dissolved in trifluoroacetic acid (50 ml) and stirred at room temperature for 72 hours. The reaction mixture was then concentrated in vacuo, and excess water was added, followed by the careful addition of saturated aqueous sodium hydrogen carbonate. The mixture was extracted with 3% methanol in DCM and the organic layer was separated, dried (Na2SO4) and concentrated in vacuo to leave a pink solid. Trituration with cold acetonitrile gave (3S,5S)-5[({4-[3-chloro-4-fluoroanilino]-7-methoxy-quinazolin-5-yl}oxy)methyl]pyrrolidin-3-ol as a brown solid (380 mg, 51%); NMR spectrum (DMSO-d6) 10.38-10.54 (br s, 1H), 8.52 (s, 1H), 8.36 (dd, 1H), 7.94-7.99 (m, 1H), 7.43 (t, 1H), 6.84 (d, 1H), 6.79 (d, 1H), 4.75 (d, 1H), 4.41 (dd, 1H), 4.26-4.34 (m, 1H), 4.17 (t, 1H), 3.94 (s, 3H), 3.54-3.73 (m, 1H), 2.96 (dd, 1H), 2.79 (dd, 1H), 2.11-2.20 (m, 1H), 1.41-1.49 (m, 1H); Mass spectrum MH+ 419.

Aufarbeitung

  1. concentrationThe reaction mixture was then concentrated in vacuo, and excess water
  2. additionwas added
  3. additionfollowed by the careful addition of saturated aqueous sodium hydrogen carbonate
  4. extractionThe mixture was extracted with 3% methanol in DCM
  5. customthe organic layer was separated
  6. dry with materialdried (Na2SO4)
  7. concentrationconcentrated in vacuo
  8. customto leave a pink solid

Quellen und Nachweise

ORD-Eintrag
ord-18d1b0c52bb2464389cd3f079380157a
Quelldatensatz
uspto-grants-2010_02
Patentnummer
US07659279B2

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